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Finding the Fourth Proportional to 3,987.99, 5,496.26 and 3,244.41

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Solution

The fourth proportional to 3,987.99, 5,496.26 and 3,244.41 is: 4,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.99 : 5,496.26 = 3,244.41 : x
  2. Step 2: Convert to fraction form
    3,987.99/5,496.26 = 3,244.41/x
  3. Step 3: Cross multiply
    3,987.99x = 5,496.26 × 3,244.41
  4. Step 4: Simplify right side
    3,987.99x = 17,832,104.68
  5. Step 5: Solve for x
    x = 17,832,104.68/3,987.99
  6. Step 6: Final answer
    x = 4,471.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.